sipcapture: updating the exported expected parameters to match the functions

- Mismatch between export and function declaration with regards to the quantity of parameters

src/modules/sipcapture/sipcapture.c

@@ -3114,7 +3114,7 @@ static sr_kemi_t sr_kemi_sipcapture_exports[] = {
 	},
 	{ str_init("sipcapture"), str_init("sip_capture_mode"),
 		SR_KEMIP_INT, ki_sip_capture_mode,
-		{ SR_KEMIP_NONE, SR_KEMIP_STR, SR_KEMIP_NONE,
+		{ SR_KEMIP_STR, SR_KEMIP_STR, SR_KEMIP_NONE,
 			SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE }
 	},
 	{ str_init("sipcapture"), str_init("report_capture"),